Section 1. The
annual meeting of the shareholders of the Company shall be held on the fourth
Tuesday of April in each year (or if said day be a legal holiday, then on the
next succeeding day not a legal holiday), at the registered office of the
Company in the City of St. Louis, State of Missouri, or on such other date and
at such other place within or without the state of Missouri as may be stated in
the notice of meeting, for the purpose of electing directors and of transacting
such other business as may properly be brought before the meeting.

Section 2. Special
meetings of the shareholders may be called only by the Chief Executive Officer
or, if one has not been appointed, by the President, or by the Board of
Directors of the Company (the “Board of Directors”) pursuant to a resolution
adopted by a majority of the total number of directors which the Company would
have if there were no vacancies.

Section 3. Written
or printed notice of each meeting of shareholders stating the place, day and
hour of the meeting and, in case of a special meeting, the purpose or purposes
for which the meeting is called, shall be delivered or given not less than ten
nor more than seventy days before the date of the meeting, either personally or
by mail, to each shareholder of record entitled to vote thereat, at his address
as it appears, if at all, on the records of the Company. Such further notice
shall be given by mail, publication or otherwise as may be required by law.
Meetings may be held without notice if all the shareholders entitled to vote
thereat are present or represented at the meeting, or
if notice is waived by those not present or represented.

Section 4. The
holders of record of a majority of the shares of the capital stock of the
Company issued and outstanding, entitled to vote thereat, present or
represented by proxy, shall, except as otherwise provided by law, constitute a
quorum at all meetings of the shareholders. If at any meeting there be no such
quorum, such holders of a majority of the shares so present or represented may
successively adjourn the meeting to a specified date not longer than ninety
days after such adjournment, without notice other than announcement at the
meeting, until such quorum shall have been obtained, when any business may be
transacted which might have been transacted at the meeting as originally
notified. The chairman of the meeting or a majority of shares so represented
may adjourn the meeting from time to time, whether or not there is such a
quorum. Shares represented by a proxy which directs
that the shares abstain from voting or that a vote be withheld on a matter,
shall be deemed to be represented at the meeting for quorum purposes. Shares as
to which voting instructions are given as to at least one of the matters to be
voted on shall also be deemed to be so represented. If the proxy states how
shares will be voted in the absence of instructions by the shareholder, such
shares shall be deemed to be represented at the meeting.

1

Section 5. Meetings
of the shareholders shall be presided over by the Chief Executive Officer or,
if he is not present, or if one has not been appointed, by the Chairman of the
Board of Directors or by the President or, if neither the Chairman nor the
President is present, by such other officer of the Company as shall be selected
for such purpose by the Board of Directors. The Secretary of the Company (the
“Secretary”) or, if he is not present, an Assistant Secretary of the Company
or, if neither the Secretary nor an Assistant Secretary is present, a secretary
pro tem to be designated by the presiding officer shall act as secretary of the
meeting.

Section 6. At all
meetings of the shareholders every holder of record of the shares of the
capital stock of the Company, entitled to vote thereat, may vote in person or
by proxy. In all matters, including the election of directors, every decision
of a majority of shares entitled to vote on the subject matter and represented
in person or by proxy at a meeting at which a quorum is present shall be valid
as an act of the shareholders, unless a larger vote is required by law, the other
provisions of these amended By-Laws (these “By-Laws”), or the articles of
incorporation of the Company (such articles, as they may be amended and/or
restated from time to time being referred to herein as the “Articles of
Incorporation”). In tabulating the number of votes on such matters,
(i) shares represented by a proxy which directs that the shares abstain
from voting or that a vote be withheld on a matter shall be deemed to be
represented at the meeting as to such matter, (ii) except as provided in
(iii) below, shares represented by a proxy as to which voting instructions
are not given as to one or more matters to be voted on shall not be deemed to
be represented at the meeting for purposes of the vote as to such matter or
matters, and (iii) a proxy which states how shares will be voted in the
absence of instructions by the shareholder as to any matter shall be deemed to
give voting instructions as to such matter.

Section 7. At all
elections for directors the voting shall be by written ballot. If the object of
any meeting be to elect directors or to take a vote of the shareholders on any
proposition of which notice shall have been given in the notice of the meeting,
the person presiding at such meeting shall appoint not less than two persons,
who are not directors, inspectors to receive and canvass the votes given at
such meeting. Any inspector, before he shall enter on the duties of his office,
shall take and subscribe an oath, in the manner provided by law, that he will
execute the duties of inspector at such meeting with strict impartiality and
according to the best of his ability. The inspectors shall take charge of the
polls and after the balloting shall make a certificate of the result of the
vote taken.

Section 8.

(a) (1) Nominations of persons for election to the Board of
Directors and the proposal of business to be considered by the shareholders may
be made at an annual meeting of shareholders (i) pursuant to the Company’s
notice of meeting, (ii) by or at the direction of the Board of Directors
or (iii) by any shareholder of the Company who (a) was a shareholder
of record at the time of giving of notice provided for in this Section or in
Section 9, as applicable, (b) is entitled to vote at the meeting, and
(c) complies with the notice procedures and meets the requirements set
forth in this Section or in Section 9, as applicable, as to such
nomination or business; clause (iii) of this paragraph (a)(1) shall be the
exclusive means for a shareholder to make nominations or submit other business
(other than matters properly brought under Rule 14a-8 under the Securities
Exchange Act of 1934, as amended (the “Exchange Act”) and included in the
Company’s notice of meeting) before an annual meeting of shareholders.

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(2) (i) Without qualification, for
nominations or other business to be properly brought before an annual meeting
by a shareholder pursuant to this Section, the shareholder must have given
timely notice thereof in writing to the Secretary and such other business must
otherwise be a proper matter for shareholder action. To be timely, a shareholder’s
notice shall be delivered to the Secretary at the principal executive offices
of the Company not later than the close of business on the 60th day nor earlier
than the close of business on the 90th day prior to the first anniversary of
the preceding year’s annual meeting except in the case of candidates
recommended by shareholders of more than 5% of the Company’s outstanding shares
of common stock who may also submit recommendations for nominations to the
Nominating and Corporate Governance Committee in accordance with the procedures
in clause (ii) of this paragraph (a)(2); provided, however, that in the
event that the date of the annual meeting is more than 30 days before or more
than 60 days after such anniversary date, notice by the shareholder to be
timely must be so delivered not earlier than the close of business on the 90th
day prior to such annual meeting and not later than the close of business on
the later of the 60th day prior to such annual meeting or, if the first public
announcement of the date of such annual meeting is less than 70 days prior to
the date of such annual meeting, the 10th day following the day on which public
announcement of the date of such meeting is first made by the Company. In no
event shall the public announcement of an adjournment of an annual meeting
commence a new time period for the giving of a shareholder’s notice as
described above. To be in proper form, such shareholder’s notice (whether given
pursuant to this paragraph (a)(2) or paragraph (b) of this Section) shall
set forth (a) as to each person, if any, whom the shareholder proposes to
nominate for election or re-election as a director, (i) all information
relating to such person that is required to be disclosed in a proxy statement
or other filings required to be made in connection with solicitations of
proxies for, as applicable, the proposal and/or for the election of directors
in a contested election pursuant to Section 14 of the Exchange Act and the
rules and regulations promulgated thereunder (including such person’s written
consent to being named in the proxy statement as a nominee and to serving as a
director if elected) and (ii) a description of all direct and indirect
compensation and other material monetary agreements, arrangements and understandings
during the past three years, and any other material relationships, between or
among such shareholder and beneficial owner, if any, and their respective
affiliates and associates, or others acting in concert therewith, on the one
hand, and each proposed nominee, and his or her respective affiliates and
associates, or others acting in concert therewith, on the other hand,
including, without limitation all information that would be required to be
disclosed pursuant to Item 404 promulgated under Regulation S-K if the
shareholder making the nomination and any beneficial owner on whose behalf the
nomination is made, if any, or any affiliate or associate thereof or person
acting in concert therewith, were the “registrant” for purposes of such
provision and the nominee were a director or executive officer of such
registrant; (b) as to any business other than the nomination of a director
or directors that the shareholder proposes to bring before the meeting
(i) a brief description of the business desired to be brought before the
meeting, the reasons for conducting such business at the meeting and any
material interest in such business of such shareholder and the beneficial
owner, if any, on whose behalf the proposal is made and (ii) a description
of all agreements, arrangements and understandings between such shareholder and
beneficial owner, if any, and any other person or persons (including their
names) in connection with the proposal of such business by such shareholder;
and (c) as to the shareholder giving the notice and the beneficial owner,
if any, on whose behalf the nomination or

3

proposal is made (i) the name
and address of such shareholder, as they appear on the Company’s books, and of
such beneficial owner, (ii) (A) the class or series and number of
shares of the Company which are, directly or indirectly, owned beneficially and
of record by such shareholder and such beneficial owner, (B) any option,
warrant, convertible security, stock appreciation right, or similar right with
an exercise or conversion privilege or a settlement payment or mechanism at a
price related to any class or series of shares of the Company or with a value
derived in whole or in part from the value of any class or series of shares of
the Company, whether or not such instrument or right shall be subject to
settlement in the underlying class or series of capital stock of the Company or
otherwise (a “Derivative Instrument”) directly or indirectly owned beneficially
by such shareholder and any other direct or indirect opportunity to profit or
share in any profit derived from any increase or decrease in the value of
shares of the Company, (C) any proxy, contract, arrangement,
understanding, or relationship pursuant to which such shareholder has a right
to vote any shares of any security of the Company, (D) any short interest
in any security of the Company (for purposes of these By-Laws a person shall be
deemed to have a short interest in a security if such person directly or
indirectly, through any contract, arrangement, understanding, relationship or
otherwise, has the opportunity to profit or share in any profit derived from
any decrease in the value of the subject security), (E) any rights to
dividends on the shares of the Company owned beneficially by such shareholder
that are separated or separable from the underlying shares of the Company,
(F) any proportionate interest in shares of the Company or Derivative
Instruments held, directly or indirectly, by a general or limited partnership
in which such shareholder is a general partner or, directly or indirectly,
beneficially owns an interest in a general partner and (G) any
performance-related fees (other than an asset-based fee) that such shareholder
is entitled to based on any increase or decrease in the value of shares of the
Company or Derivative Instruments, if any, as of the date of such notice,
including without limitation any such interests held by members of such
shareholder’s immediate family sharing the same household (which information
shall be supplemented by such shareholder and beneficial owner, if any, not
later than 10 days after the record date for the meeting to disclose such
ownership as of the record date); and (iii) any other information relating
to such shareholder and beneficial owner, if any, that would be required to be
disclosed in a proxy statement or other filings required to be made in
connection with solicitations of proxies for, as applicable, the proposal
and/or for the election of directors in a contested election pursuant to
Section 14 of the Exchange Act and the rules and regulations promulgated
thereunder; and (d) a signed statement by the nominee agreeing that, if
elected, such nominee will (i) represent all Company shareholders in
accordance with applicable law and these By-Laws, and (ii) comply with the
Company’s Corporate Compliance Policy and the Company’s Policy Regarding
Nominations of Directors. The Company may require any proposed nominee to
furnish such other information as may reasonably be required by the Company to
determine the eligibility of such proposed nominee to serve as an independent
director of the Company or that could be material to a reasonable shareholder’s
understanding of the independence, or lack thereof, of such nominee.

(ii) Shareholders or a group of shareholders who have Owned
(as defined in Section 9) more than 5% of the Company’s outstanding shares
of common stock as of the most recent date for which such number is disclosed
by the Company in an annual or quarterly report filed with the Securities and
Exchange Commission (the “SEC”) under the Exchange Act prior to the date the
recommendation was made for at least one year as of the date the recommendation
was made may recommend nominees for director to the Nominating and Corporate
Governance Committee, provided that written notice from the shareholder(s) must
be received by the Secretary at the principal executive offices of the Company
not later than 120 days prior to the anniversary of

4

the date the Company’s proxy
statement was released to shareholders in connection with the previous year’s
annual meeting; provided, however, that in the event that the date of the
annual meeting has been changed by more than 30 days from the date of the
preceding year’s annual meeting, notice by the shareholder must be received by
the Secretary not later than the 10th day following the day on which public
announcement of the date of such meeting is first made by the Company. In no
event shall the public announcement of an adjournment of an annual meeting
commence a new time period for the giving of a shareholder’s notice as
described above. To be in proper form, such shareholder’s notice shall set
forth (a) as to each person whom the shareholder proposes to nominate for
election or re-election as a director, (i) all information relating to
such person that is required to be disclosed in solicitations of proxies for
election of directors in an election contest, or is otherwise required, in each
case pursuant to Section 14 of the Exchange Act and the rules and
regulations promulgated thereunder (including (y) such person’s written
consent to being named in the proxy statement as a nominee and to serving as a
director if elected and (z) the written consent of the shareholder(s)
recommending the nominee to being identified in the Company’s proxy statement)
and (ii) a description of all direct and indirect compensation and other
material monetary agreements, arrangements and understandings during the past
three years, and any other material relationships, between or among such
shareholder(s) and beneficial owner(s), if any, and their respective affiliates
and associates, or others acting in concert therewith, on the one hand, and
each proposed nominee, and his or her respective affiliates and associates, or
others acting in concert therewith, on the other hand, including, without
limitation all information that would be required to be disclosed pursuant to
Item 404 promulgated under Regulation S-K if the shareholder(s) making the
nomination and any beneficial owner(s) on whose behalf the nomination is made,
if any, or any affiliate or associate thereof or person acting in concert
therewith, were the “registrant” for purposes of such provision and the nominee
were a director or executive officer of such registrant; (b) as to the
shareholder(s) giving the notice and the beneficial owner(s), if any, on whose
behalf the nomination or proposal is made (i) the name and address of such
shareholder(s), as they appear on the Company’s books, and of such beneficial
owner(s), (ii)(A) the class or series and number of shares of the Company which
are, directly or indirectly owned beneficially and of record by such
shareholder(s) and such beneficial owner(s) and information with respect to the
holding period for such shares, (B) Derivative Instruments directly or
indirectly owned beneficially by such shareholder(s) and any other direct or
indirect opportunity to profit or share in any profit derived from any increase
or decrease in the value of shares of the Company, (C) any proxy,
contract, arrangement, understanding, or relationship pursuant to which such
shareholder(s) has a right to vote any shares of any security of the Company,
(D) any short interest in any security of the Company (for purposes of
these By-Laws a person shall be deemed to have a short interest in a security
if such person directly or indirectly, through any contract, arrangement,
understanding, relationship or otherwise, has the opportunity to profit or
share in any profit derived from any decrease in the value of the subject
security), (E) any rights to dividends on the shares of the Company owned
beneficially by such shareholder(s) that are separated or separable from the
underlying shares of the Company, (F) any proportionate interest in shares
of the Company or Derivative Instruments held, directly or indirectly, by a
general or limited partnership in which such shareholder(s) is a general
partner or, directly or indirectly, beneficially owns an interest in a general
partner and (G) any performance-related fees (other than an asset-based
fee) that such shareholder(s) is entitled to based on any increase or decrease
in the value of shares of the Company or Derivative Instruments, if any, as of
the date of such notice, including without limitation any such interests held
by members of such shareholder’s immediate

5

family sharing the same household
(which information shall be supplemented by such shareholder(s) and beneficial
owner(s), if any, not later than 10 days after the record date for the meeting
to disclose such ownership as of the record date); and (iii) any other
information relating to such shareholder(s) and beneficial owner(s), if any,
that would be required to be disclosed in a proxy statement or other filings
required to be made in connection with solicitations of proxies for, as
applicable, the proposal and/or for the election of directors in a contested
election pursuant to Section 14 of the Exchange Act and the rules and
regulations promulgated thereunder; and (c) a signed statement by the
nominee agreeing that, if elected, such nominee will (i) represent all
Company shareholders in accordance with applicable law and these By-Laws and
(ii) comply with the Company’s Corporate Compliance Policy and the
Company’s Policy Regarding Nominations of Directors. The Company may require
any proposed nominee to furnish such other information as may reasonably be
required by the Company to determine the eligibility of such proposed nominee
to serve as an independent director of the Company or that could be material to
a reasonable shareholder’s understanding of the independence, or lack thereof,
of such nominee.

(3) Notwithstanding anything in the second sentence of
paragraph (a)(2)(i) of this Section to the contrary, in the event that the
number of directors to be elected to the Board of Directors is increased and there
is no public announcement by the Company naming all of the nominees for
director or specifying the size of the increased Board of Directors at least 70
days prior to the first anniversary of the preceding year’s annual meeting, a
shareholder’s notice required by this Section shall also be considered timely,
but only with respect to nominees for any new positions created by such
increase, if it shall be delivered to the Secretary at the principal executive
offices of the Company not later than the close of business on the 10th day
following the day on which such public announcement is first made by the
Company.

(b) Only such business shall be conducted at a special
meeting of shareholders as shall have been brought before the meeting pursuant
to the Company’s notice of meeting. Nominations of persons for election to the
Board of Directors may be made at a special meeting of shareholders at which
directors are to be elected pursuant to the Company’s notice of meeting
(1) by or at the direction of the Board of Directors or (2) provided
that the Board of Directors has determined that directors shall be elected at
such meeting, by any shareholder of the Company who is a shareholder of record
at the time of giving of notice provided for in this Section, who shall be
entitled to vote at the meeting and who complies with the notice procedures set
forth in this Section. In the event the Company calls a special meeting of
shareholders for the purpose of electing one or more directors to the Board of
Directors, any such shareholder may nominate a person or persons (as the case
may be), for election to such position(s) as specified in the Company’s notice
of meeting, if the shareholder’s notice required by paragraph (a)(2)(i) of this
Section with respect to any nomination shall be delivered to the Secretary at
the principal executive offices of the Company not earlier than the close of
business on the 90th day prior to the date of such special meeting and not
later than the close of business on the later of the 60th day prior to the date
of such special meeting or, if the first public announcement of the date of
such special meeting is less than 100 days prior to the date of such special
meeting, the 10th day following the day on which public announcement is first made
of the date of the special meeting and of the nominees proposed by the Board of
Directors to be elected at such meeting. In no event shall the public
announcement of an adjournment of a special meeting commence a new time period
for the giving of a shareholder’s notice as described above.

6

(c) (1) Only
such persons who are nominated in accordance with the procedures set forth in
this Section or in Section 9 shall be eligible to serve as directors and
only such business shall be conducted at a meeting of shareholders as shall
have been brought before the meeting in accordance with the procedures set
forth in this Section. Except as otherwise provided by law, the Articles of
Incorporation or these By-Laws, the chairman of the meeting shall have the
power and duty to determine whether a nomination or any business proposed to be
brought before the meeting was made or proposed, as the case may be, in
accordance with the procedures set forth in this Section or in Section 9,
as applicable, and, if any proposed nomination or business is not in compliance
with this Section or with Section 9, as applicable, and, if any proposed
nomination or business is not in compliance with this Section or with Section 9,
as applicable, to declare that such defective proposal or nomination shall be
disregarded.

(2) For purposes of this Section, “public announcement”
shall mean disclosure in a press release reported by the Dow Jones News
Service, Associated Press or comparable national news service or in a document
publicly filed by the Company with the SEC pursuant to Section 13, 14 or
15(d) of the Exchange Act.

(3) Notwithstanding the foregoing provisions of this
Section, a shareholder shall also comply with all applicable requirements of
the Exchange Act and the rules and regulations thereunder with respect to the
matters set forth in this Section and in Section 9; provided, however,
that any references in these By-Laws to the Exchange Act or the rules promulgated
thereunder are not intended to and shall not limit the requirements applicable
to nominations or proposals as to any other business to be considered pursuant
to clause (iii) of paragraph (a)(1), paragraph (a)(2) and paragraph
(b) of this Section or Section 9. Nothing in this Section or in
Section 9 shall be deemed to affect any rights (A) of shareholders to
request inclusion of proposals in the Company’s proxy statement pursuant to
Rule 14a-8 under the Exchange Act or (B) of the holders of any series of Preferred
Stock to elect directors if and to the extent provided for under law, the
Articles of Incorporation or these By-Laws.

Section 9.

(a) Whenever the Board of Directors solicits proxies with
respect to an election of directors at an annual meeting of shareholders (an
“Annual Election”), subject to the provisions of this Section, it shall include
in its proxy statement and on its proxy card for such Annual Election and on
any ballot distributed at such Annual Election (such materials collectively, the
“Proxy Materials”), in addition to individuals nominated by the Board of
Directors or any committee thereof, the name, together with (in the case of
such proxy statement only) the Required Information (defined below), of any
individual nominated in compliance with this Section (each, a “Shareholder
Nominee”) by an Eligible Shareholder (defined below) who expressly elects at
the time of providing the notice required by this Section (the “Notice of Proxy
Access Nomination”) to have its nominee included in the Proxy Materials
pursuant to this Section. To be timely, an Eligible Shareholder seeking to have
its nominee included in the Proxy Materials shall deliver the Notice of Proxy
Access Nomination to the Secretary at the principal executive offices of the Company
not later than the close of business on the 120th day nor earlier than the
close of business on the 150th day prior to the anniversary of the date the
Company’s proxy statement was released to shareholders in connection with the
previous year’s annual meeting; provided, however, that in the event that the
date of the annual meeting has been changed by more than 30 days from the date
of

7

the preceding year’s annual meeting,
notice by the Eligible Shareholder must be delivered to the Secretary not later
than the 10th day following the day on which public announcement of the date of
such meeting is first made by the Company (the last day on which a Notice of
Proxy Access Nomination may be delivered, the “Proxy Access Deadline”). In no
event shall the public announcement of an adjournment of an annual meeting
commence a new time period (or extend the Proxy Access Deadline) for the giving
of a Notice of Proxy Access Nomination. The maximum number of Shareholder
Nominees nominated by all Eligible Shareholders that will be included in the
Proxy Materials with respect to any annual meeting of shareholders of the
Company shall not exceed the Permitted Number.

(b) For purposes of this Article:

(1) The “Permitted Number” means 20% of the number of seats
on the Board of Directors to be filled in the Annual Election (rounded down to
the nearest whole number but not less than two) as of the Proxy Access
Deadline. If one or more vacancies for any reason occurs on the Board of
Directors after the Proxy Access Deadline but before the date of the Annual
Election, and the Board of Directors resolves to reduce the size of the Board
of Directors in connection therewith, the Permitted Number shall be calculated
based on the number of directors in office as so reduced. For purposes of
determining whether the Permitted Number has been reached, each of the
following persons shall be counted as one of the Shareholder Nominees:
(i) any individual nominated by an Eligible Shareholder pursuant to this
Section whom the Board of Directors decides to nominate as a nominee of the
Board of Directors, (ii) any director in office as of the Proxy Access
Deadline who was previously included in the Proxy Materials as a Shareholder
Nominee for any of the three preceding annual meetings of shareholders of the
Company pursuant to this Section whom the Board of Directors decides to
renominate for election as a nominee of the Board of Directors and
(iii) any individual nominated by an Eligible Shareholder pursuant to this
Section whose nomination is subsequently withdrawn at or prior to the Annual
Election.

(2) An “Eligible Shareholder” means one or more shareholders
of record who Owns and has Owned, or who collectively Own and have collectively
Owned, at least the Required Interest for at least the three years (the
“Minimum Holding Period”) preceding the date the Notice of Proxy Access
Nomination is delivered to the Secretary in accordance with this Section, that
continues to Own, or that continues to collectively Own, at least the Required
Interest through the date of the Annual Election, and that complies with all
applicable provisions of this Section; provided that the aggregate number of
shareholders of record and, if and to the extent that a shareholder of record
is acting on behalf of one or more beneficial owners, of such beneficial
owners, whose stock ownership is counted for the purposes of satisfying the
foregoing ownership requirement shall not exceed 20. The following shall be
treated as one shareholder of record or beneficial owner, as applicable, if the
applicable Eligible Shareholder shall provide together with the Notice of Proxy
Access Nomination documentation reasonably satisfactory to the Board of
Directors or its designee that demonstrates compliance with the following
criteria: (i) funds under common management and investment control,
(ii) funds under common management and funded primarily by the same
employer or (iii) a “group of investment companies” (as such term is
defined in the Investment Company Act of 1940, as amended); provided that each
such fund or investment company otherwise meets the requirements set forth in
this Section applicable to each shareholder of record or beneficial owner, as
applicable, within a group that constitutes an Eligible Shareholder. No
shareholder of record or beneficial owner shall be permitted to be in more than

8

one group that constitutes an
Eligible Shareholder, and if any shareholder of record or beneficial owner
appears as a member of more than one such group, it shall be deemed to be a
member only of the group that Owns the largest number of shares of common stock
of the Company as reflected in the Notice of Proxy Access Nomination. An
Eligible Shareholder shall in its Notice of Proxy Access Nomination disclose
the shares of common stock of the Company it is deemed to Own for purposes of
this Section. In the event that the Eligible Shareholders consists of a group
of shareholders, any and all requirements and obligations for an individual
shareholder of record or beneficial owner, as applicable, that are set forth in
this Section, including the Minimum Holding Period, shall apply to each member
of such group; provided, however, that the Required Interest shall apply to the
ownership of the group in the aggregate.

(3) The “Required Interest” means 3% of the outstanding
shares of common stock of the Company as of the most recent date for which such
number is disclosed by the Company in an annual or a quarterly report filed
with the SEC under the Exchange Act prior to the submission of the Required
Information.

(4) A person is deemed to “Own” only those outstanding
shares of the Company’s common stock as to which such person possesses both:
(i) the full voting and investment rights pertaining to such shares and
(ii) the full economic interest in (including the opportunity for profit
from and the risk of loss on) such shares; provided that the number of shares
calculated in accordance with clauses (i) and (ii) shall not include
any shares (A) sold by such person in any transaction that has not been
settled or closed, (B) borrowed by such person for any purpose or
purchased by such person pursuant to an agreement to resell, or
(C) subject to any option, warrant, forward contract, swap, contract of
sale, other derivative or similar agreement entered into by such person,
whether any such instrument or agreement is to be settled with shares or with
cash based on the notional amount or value of outstanding common stock of the
Company, in any such case which instrument or agreement has, or is intended to
have, the purpose or effect of: (x) reducing in any manner, to any extent
or at any time in the future, such person’s full right to vote or direct the
voting of any such shares, and/or (y) hedging, offsetting, or altering to
any degree any gain or loss arising from the full economic ownership of such
shares by such person. A person is deemed to “Own” shares held in the name of a
nominee or other intermediary so long as such person retains the right to
instruct how the shares are voted with respect to the election of directors and
possesses the full economic interest in the shares. A person’s ownership of
shares shall be deemed to continue during any period in which such person has
delegated any voting power by means of a proxy, power of attorney, or other
similar instrument or arrangement that is revocable at any time by such person.
A person’s ownership of shares shall be deemed to continue during any period in
which such person has loaned such shares; provided that such person has the
power to recall such loaned shares on three business days’ notice and provides
a representation that it (a) will promptly recall such loaned shares upon
being notified (1) in the case of a recommendation pursuant to
Section 8(a)(2)(ii), any of its recommended persons will be nominated by
the Board of Directors as a nominee of the Board of Directors or (2) in
the case of a nomination pursuant to this Section, that any of its Shareholder
Nominees will be included in the Proxy Materials and (b) will continue to
hold such shares through the date of the Annual Election. The terms “Owned,”
“Owning” and other variations of the word “Own” shall have correlative
meanings. Whether outstanding shares of the Company are “Owned” for these
purposes shall be determined by the Board of Directors or its designee acting
in good faith.

9

(5) The “Required Information” means
(i) the information concerning the Shareholder Nominee and the Eligible
Shareholder that, as determined by the Company, is required to be disclosed in
a proxy statement filed pursuant to the proxy rules of the SEC and (ii) if
the Eligible Shareholder so elects, the Statement.

(6) The “Statement” means a written statement from the
Eligible Shareholder in support of the Shareholder Nominee(s)’ candidacy to be
included in the Company’s proxy statement, which Statement in order to be so
included shall not exceed 500 words and must fully comply with Section 14
of the Exchange Act and the rules and regulations promulgated thereunder,
including without limitation Rule 14a-9. Notwithstanding anything to the
contrary contained in this Section, the Company may omit from the Proxy
Materials any information or Statement (or portion thereof) that it determines
would violate any applicable law or regulation or that it believes is untrue in
any material respect (or omits to state a material fact necessary in order to
make the statements made, in light of the circumstances under which they are
made, not misleading).

(c) Any Eligible Shareholder submitting more than one
Shareholder Nominee for inclusion in the Proxy Materials pursuant to this
Section shall rank such Shareholder Nominee based on the order that the
Eligible Shareholder desires such Shareholder Nominee to be selected for
inclusion in the Proxy Materials in the event that the total number of
Shareholder Nominees submitted by Eligible Shareholders pursuant to this
Section exceeds the Permitted Number. In the event that the number of
Shareholder Nominees submitted by Eligible Shareholders pursuant to this
Section exceeds the Permitted Number, the highest ranking Shareholder Nominee who
meets the requirements of this Section from each Eligible Shareholder will be
selected for inclusion in the Proxy Materials until the Permitted Number is
reached, going in the order of the number (from largest to smallest) of shares
of common stock of the Company that each Eligible Shareholder disclosed as
Owned for purposes of this Section in its Notice of Proxy Access Nomination. If
the Permitted Number is not reached after the highest ranking Shareholder
Nominee who meets the requirements of this Section from each Eligible
Shareholder has been selected, this process will continue as many times as
necessary, following the same order each time, until the Permitted Number is
reached.

(d) Any Eligible Shareholder nominating a person for
election to the Board of Directors in accordance with this Section shall also
deliver the following in writing to the Secretary at the principal executive
offices of the Company no later than the Proxy Access Deadline:

(1) the information that would be required to be set forth
in a shareholder’s notice of recommendation pursuant to
Section 8(a)(2)(ii);

(2) an acknowledgment by such Eligible Shareholder, and the
beneficial owners, if any, on whose behalf the Notice of Proxy Access
Nomination is being submitted, that such Notice of Proxy Access Nomination
shall be deemed to be revoked if such Eligible Shareholder does not Own at
least the Required Interest at all times between the date on which such Notice
of Proxy Access Nomination is delivered to the Secretary and the date of the
Annual Election;

(3) documentary evidence that such
Eligible Shareholder Owns at least the Required Interest as of the date the
Notice of Proxy Access Nomination is delivered to the Secretary, and has Owned
continuously for the Minimum Holding Period prior to such date, at

10

least the Required Interest;
provided, however, that if such Eligible Shareholder, or any member of the
group that together constitutes such Eligible Shareholder, is not the
beneficial owner of the shares representing the Required Interest, then to be
valid, the Notice of Proxy Access Nomination must also include documentary
evidence that the beneficial owner on whose behalf the Notice of Proxy Access
Nomination is being submitted Owns at least the Required Interest as of the
date on which such Notice of Proxy Access Nomination is delivered to the
Secretary, and has Owned continuously for the Minimum Holding Period prior to
such date, at least the Required Interest;

(4) a copy of the Schedule 14N (or
any successor form) that has been filed with the SEC as required by Rule 14a-18
under the Exchange Act;

(5) a representation that such
Eligible Shareholder (including each member of any group that together constitutes
such Eligible Shareholder), and the beneficial owners, if any, on whose behalf
the Notice of Proxy Access Nomination is being submitted:

(i) acquired all of the shares of common stock of the
Company that are held by such person at such time that such representation is
being made in the ordinary course of business and not with the intent to change
or influence control of the Company, including “control” as such term is
defined under applicable securities laws, and does not presently have such
intent;

(ii) has not engaged and will not engage in any, and has not
and will not be a “participant” in another person’s, “solicitation” within the
meaning of Rule 14a-1(l) under the Exchange Act in support of the election of
any individual as a director at the Annual Election other than its Shareholder
Nominee or a nominee of the Board of Directors;

(iii) will not use any proxy card other than the Company’s
proxy card in soliciting shareholders in connection with the election of a
Shareholder Nominee at the Annual Election; and

(iv) will provide facts, statements and other information in
all communications with the Company and its shareholders that are or will be
true and correct in all material respects and do not and will not omit to state
a material fact necessary in order to make the statements made, in light of the
circumstances under which they were made, not misleading;

(6) an undertaking that such
Eligible Shareholder agrees to:

(i) file any written solicitation or other communication
with the Company’s shareholders relating to one or more of the Company’s
directors or director nominees or any Shareholder Nominee with the SEC,
regardless of whether any such filing is required under any rule or regulation
or whether any exemption from filing is available for such materials under any
rule or regulation;

(ii) assume (jointly and severally with all other group
members, in the case of a group member) all liability stemming from any actual
or alleged legal or regulatory violation arising out of communications by such
Eligible Shareholder, the beneficial owners, if any, on whose behalf the Notice
of Proxy Access Nomination is being submitted, or the Shareholder Nominee
nominated by such Eligible Shareholder (such persons collectively, the
“Applicable Persons”) with the shareholders of the Company or out of the
information that such Applicable Persons provided to the Company, its
shareholders or any other person;

11

(iii) indemnify and hold harmless
the Company and each of its directors, officers and employees individually
against any liability, damages or any other loss in connection with any
threatened or pending action, suit or proceeding, whether legal, administrative
or investigative, against the Company or any of its directors, officers or
employees arising out of any nomination submitted by such Eligible Shareholder
pursuant to this Section; and

(iv) comply with all other
applicable laws, rules, regulations and listing standards with respect to any
solicitation in connection with the Annual Election.

(7) an undertaking by each of the Applicable Persons that, in
the event that any information or communications provided by such Applicable
Person ceases to be true and correct in all material respects or omits a
material fact necessary to make the statements made, in light of the
circumstances under which they were made, not misleading, such Applicable
Person shall promptly notify the Secretary of any defect in such previously
provided information and of the information that is required to correct any
such defect;

(8) an undertaking by such Eligible Shareholder, and the
beneficial owners, if any, on whose behalf the Notice of Proxy Access
Nomination is being submitted, to provide immediate notice to the Company if
such Eligible Shareholder (or such beneficial owners) ceases to own any shares
representing the Required Interest prior to the date of the Annual Election;
and

(9) in the case of a group that
together constitutes such Eligible Shareholder, the designation by all group
members of one group member that is authorized to act on behalf of all members
of such group with respect to the nomination and matters related thereto,
including withdrawal of the nomination.

In addition, each Eligible Shareholder, and the beneficial
owners, if any, on whose behalf the Notice of Proxy Access Nomination is being
submitted, shall promptly provide any other information reasonably requested by
the Company.

(e) Within the time period specified in this Section for
delivering the Notice of Proxy Access Nomination, a Shareholder Nominee must
deliver to the Secretary a written representation and agreement that such
person:

(1) has read and agrees, if elected, to serve as a director
and to adhere to the Company’s Corporate Governance Guidelines, the Company’s
code of ethics and code of business conduct, these By-Laws and any other policies
and guidelines of the Company applicable to directors;

(2) is not and will not become a party to any agreement,
arrangement or understanding with any person or entity (other than the Company)
with respect to direct or indirect compensation, reimbursement or
indemnification in connection with service or action as a director of the
Company that has not been disclosed to the Company;

(3) is not and will not become a party to any agreement,
arrangement or understanding with, and has not given any commitment or
assurance to, any person or entity as to how such Shareholder Nominee, if
elected as a director of the Company, would vote or act on any issue or
question as a director; and

12

(4) will
provide facts, statements and other information in all communications with the
Company and its shareholders that are or will be true and correct in all
material respects (and shall not omit to state a material fact necessary in
order to make the statements made, in light of the circumstances under which
they were made, not misleading).

At the request of the Company, a Shareholder Nominee must
submit all completed and signed questionnaires required of directors of the
Company, including those applicable to committee service, within five business
days of receipt of such questionnaire from the Company. The Company may request
such additional information as necessary to permit the Board of Directors to determine
if a Shareholder Nominee is independent under the listing standards of the
principal U.S. exchange upon which the common stock of the Company is listed,
any applicable rules or regulations of the SEC and any publicly disclosed
standards used by the Board of Directors in determining and disclosing
independence of the Company’s directors.

(f) The Company shall not be required to include, pursuant
to this Section, a Shareholder Nominee in the Proxy Materials for any annual
meeting of shareholders:

(1) if the Secretary receives a notice that a shareholder
intends to nominate a candidate for director at such annual meeting pursuant to
the advance notice requirements for directors set forth in
Section 8(a)(2)(i) without such shareholder’s notice expressly electing to
have such director candidate included in the Proxy Materials pursuant to this
Section;

(2) if the Eligible Shareholder (or any member of any group
that together constitutes such Eligible Shareholder) who has nominated such
Shareholder Nominee, or the beneficial owners, if any, on whose behalf the
Notice of Proxy Access Nomination is being submitted, is currently engaged in a
“solicitation” or is a “participant” in another person’s “solicitation” within
the meaning of Rule 14a-1(l) under the Exchange Act in support of the election
of any individual as a director at such annual meeting other than its
Shareholder Nominee or a nominee of the Board of Directors;

(3) who is not “independent” under the rules and listing
standards of each principal U.S. exchange upon which the common stock of the
Company is listed, any applicable rules or regulations of the SEC and any
publicly disclosed standards used by the Board of Directors in determining and
disclosing independence of the Company’s directors, in each case as determined
by the Board of Directors in good faith;

(4) who is or has been, within the
past three years, an officer or director of a competitor as defined for
purposes of Section 8 of the Clayton Antitrust Act of 1914, as amended;

(5) who is a director or officer of
any public utility company regulated by the Federal Energy Regulatory
Commission;

(6) whose election as a member of the Board of Directors
would cause the Company to be in violation of these By-Laws, the Articles of
Incorporation, the rules and listing standards of any principal U.S. exchange
upon which the common stock of the Company is listed, or any applicable state
or federal law, rule or regulation;

13

(7) who is
a named subject of a pending criminal proceeding (excluding traffic violations
and other minor offenses) or has been convicted in such a criminal proceeding
within the past ten years;

(8) who is or has been subject to any event specified in
Rule 506(d)(1) of Regulation D under the Securities Act of 1933, as amended;

(9) if the Eligible Shareholder who nominated such
Shareholder Nominee, the beneficial owners, if any, on whose behalf the Notice
of Proxy Access Nomination is being submitted, or such Shareholder Nominee
fails to comply with its or their obligations pursuant to this Section; or

(10) for which an Eligible
Shareholder has withdrawn its nomination or who becomes unwilling or unable to
serve on the Board of Directors.

(g) Nothing in this Section shall limit the Company’s ability
to solicit against and include in the Proxy Materials its own statements
relating to any Shareholder Nominee.

(h) Notwithstanding anything to the contrary set forth
herein, the Board of Directors or the chairman of any Annual Election shall
declare a nomination by an Eligible Shareholder to be invalid, and such
nomination shall be disregarded notwithstanding that proxies in respect of such
vote may have been received by the Company, if (1) the Shareholder Nominee
nominated by such Eligible Shareholder, such Eligible Shareholder (or any
member of any group that together constitutes an Eligible Shareholder), or the
beneficial owners, if any, on whose behalf the Notice of Proxy Access
Nomination is being submitted, shall have breached its or their obligations
under this Section, as determined by the Board of Directors or such chairman or
(2) such Eligible Shareholder (or a qualified representative thereof) does
not appear at the Annual Election to present its nomination pursuant to this
Section. For purposes of this Section, to be considered a qualified
representative of the Eligible Shareholder, a person must be a duly authorized
officer, manager or partner of such shareholder or must be authorized by a
writing executed by such shareholder or an electronic transmission delivered by
such shareholder to act for such shareholder as proxy at the Annual Election
and such person must produce such writing or electronic transmission, or a
reliable reproduction of the writing or electronic transmission, at the Annual
Election. The Board of Directors (and any other person or body authorized by
the Board of Directors) shall have the power and authority to interpret this
Section and to make any and all determinations necessary or advisable to apply
this Section to any persons, facts or circumstances, including the power to
determine (i) whether one or more shareholders qualifies as an Eligible
Shareholder, (ii) whether a Notice of Proxy Access Nomination complies
with this Section and has otherwise met the requirements of this Section,
(iii) whether a Shareholder Nominee satisfies the qualifications and
requirements in this Section, and (iv) whether any and all requirements of
this Section have been satisfied. Any such interpretation or determination
adopted in good faith by the Board of Directors (or any other person or body
authorized by the Board of Directors) shall be binding on all persons,
including the Company and its shareholders (including any beneficial owners).

14

(i) Any Shareholder Nominee who is
included in the Proxy Materials for a particular annual meeting of shareholders
but either (1) withdraws from or becomes ineligible or unavailable for
election at such annual meeting or (2) does not receive at least 25% of
the votes cast in favor of such Shareholder Nominee’s election, will be
ineligible to be a Shareholder Nominee pursuant to this Section for the next
two annual meetings. For the avoidance of doubt, this paragraph (i) shall
not prevent any shareholder from nominating any person to the Board of
Directors pursuant to and in accordance with Section 8. This Section shall
provide the exclusive method for shareholders to include nominees for the Board
of Directors in the Proxy Materials.

ARTICLE II

Directors

Section 1. The
property and business of the Company shall be controlled and managed by its
Board of Directors. The number of directors to constitute the Board of
Directors shall be fifteen; provided, however, that such number may be fixed by
the Board of Directors, from time to time, at not less than a minimum of three
nor more than a maximum of twenty-one (21) (subject to the rights of the
holders of shares of Preferred Stock, if any, as set forth in the Articles of
Incorporation). Except as otherwise provided in the Articles of Incorporation,
the directors shall hold office until the next annual election and until their
successors shall be elected and qualified. A majority of the members of the
Board of Directors shall constitute a quorum for the transaction of business,
but if at any meeting of the Board there shall be less than a quorum present, a
majority of the directors present may adjourn the meeting from time to time,
without notice other than announcement at the meeting, until such quorum shall
have been obtained, when any business may be transacted which might have been
transacted at the original meeting had a quorum been present.

Section 2. Vacancies
in the Board of Directors, including vacancies created by newly created
directorships, shall be filled in the manner provided in the Articles of
Incorporation, and, except as otherwise provided therein, the directors so
elected shall hold office until their successors shall be elected and
qualified.

Section 3. Meetings
of the Board of Directors shall be held at such time and place within or
without the State of Missouri as may from time to time
be fixed by resolution of the Board, or as may be stated in the notice of any
meeting. Regular meetings of the Board shall be held at such time as may from
time to time be fixed by resolution of the Board, and notice of such meetings
need not be given. Special meetings of the Board may be held at any time upon
call of the Chief Executive Officer or, if one has not been appointed, by the
President, or by the Executive Committee, if one shall have been appointed, or
by the Lead Director, selected in accordance with the Company’s Corporate
Governance Guidelines, by oral, telephonic (including via telecopier) or
written notice, duly given or sent or mailed to each director not less than two
(2) days before any such meeting. The notice of any meeting of the Board
need not specify the purposes thereof except as may be otherwise required by
law. Meetings may be held at any time without notice if all of the directors
are present or if those not present waive notice of the meeting, in writing.

Section 4. The Board
of Directors, by the affirmative vote of a majority of the whole Board may
appoint an Executive Committee, to consist of two or more directors as the
Board may from time to time determine. The Executive Committee shall have and
may exercise to the extent

15

permitted by law, when the Board is not in session, all of the powers
vested in the Board, except the power to fill vacancies in the Board, the power
to fill vacancies in or to change the membership of said Committee, and the
power to make or amend By-Laws of the Company. The Board shall have the power
at any time to fill vacancies in, to change the membership of, or to dissolve,
the Executive Committee. The Executive Committee may make rules for the conduct
of its business and may appoint such committees and assistants as it shall from
time to time deem necessary. A majority of the members of the Executive
Committee shall constitute a quorum.

Section 5. The Board
of Directors may also appoint one or more other committees to consist of such
number of the directors and to have such powers as the Board may from time to
time determine. The Board shall have the power at any time to fill vacancies
in, to change the membership of, or to dissolve, any such committee. A majority
of any such committee may determine its action and fix the time and place of
its meetings, unless the Board of Directors shall otherwise provide.

ARTICLE III

Officers

Section 1. As soon
as is practicable after the election of directors at the annual meeting of
shareholders, the Board of Directors shall elect one of its members President
of the Company, and shall elect a Secretary. The Board may also elect from its
members a Chairman of the Board of Directors (which office may be held by the
President) and one or more Vice Chairmen of the Board of Directors. The Board
shall designate either the Chairman, if any, or the President as the Chief
Executive Officer of the Company. In addition, the Board may elect one or more
Vice Presidents (any one or more of whom may be designated as Senior or
Executive Vice Presidents), and a Treasurer, and from time to time may appoint
such Assistant Secretaries, Assistant Treasurers and other officers, agents,
and employees as it may deem proper. The offices of Secretary and Treasurer may
be held by the same person, and a Vice President of the Company may also be
either the Secretary or the Treasurer.

Section 2. Between
annual elections of officers, the Board of Directors may effect such changes in
Company offices as it deems necessary or proper.

Section 3. Subject
to such limitations as the Board of Directors may from time to time prescribe,
the officers of the Company shall each have such powers and duties as generally
pertain to their respective offices, as well as such powers and duties as from
time to time may be conferred by the Board of Directors or the Executive
Committee. The Treasurer and the Assistant Treasurers may be required to give
bond for the faithful discharge of their duties, in such sum and of such
character as the Board of Directors may from time to time prescribe.

ARTICLE IV

Indemnification

Each person who now is or hereafter becomes a director,
officer or employee of the Company, or who now is or hereafter becomes a
director or officer of another corporation, partnership, joint venture, trust
or other enterprise at the request of the Company, shall be entitled to
indemnification

16

to the extent permitted by law and these By-Laws. Such right
of indemnification shall include, but not be limited to, the following:

Section 1.

(a) The Company shall indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit, or proceeding, whether civil, criminal, administrative
or investigative, other than an action by or in the right of the Company, by
reason of the fact that he is or was a director, officer or employee of the
Company, or is or was serving at the request of the Company as a director or
officer of another corporation, partnership, joint venture, trust or other
enterprise, against expenses, including attorneys’ fees, judgments, fines and
amounts paid in settlement actually and reasonably incurred by him in connection
with such action, suit or proceeding if he acted in good faith and in a manner
he reasonably believed to be in or not opposed to the best interests of the
Company, and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful. The termination of any
action, suit, or proceeding by judgment, order, settlement, conviction, or upon
a plea of nolo contendere or its equivalent, shall not, of itself, create a
presumption that the person did not act in good faith and in a manner which he
reasonably believed to be in or not opposed to the best interests of the
Company, and, with respect to any criminal action or proceeding, had reasonable
cause to believe that his conduct was unlawful.

(b) The Company shall indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action or suit by or in the right of the Company to procure a
judgment in its favor by reason of the fact that he is or was a director,
officer or employee of the Company, or is or was serving at the request of the
Company as a director or officer of another corporation, partnership, joint
venture, trust or other enterprise against expenses, including attorneys’ fees,
and amounts paid in settlement actually and reasonably incurred by him in
connection with the defense or settlement of the action or suit if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to
the best interests of the Company, except that no indemnification shall be made
in respect of any claim, issue or matter as to which such person shall have
been adjudged to be liable for negligence or misconduct in the performance of
his duty to the Company unless and only to the extent that the court in which
the action or suit was brought determines upon application that, despite the
adjudication of liability and in view of all the circumstances of the case, the
person is fairly and reasonably entitled to indemnity for such expenses which
the court shall deem proper.

(c) The Company shall further indemnify to the maximum
extent permitted by law, any person who was or is a party or is threatened to
be made a party to any threatened, pending or completed action, suit, or
proceeding (including appeals), whether civil, criminal, investigative
(including private Company investigations), or administrative, including an
action by or in the right of the Company, by reason of the fact that the person
is or was a director, officer or employee of the Company, or is or was serving
at the request of the Company as a director or officer of another corporation,
partnership, joint venture, trust or other enterprise, from and against any and
all expenses incurred by such person, including, but not limited to, attorneys’
fees, judgments, fines, and amounts paid in settlement actually and reasonably
incurred by him in connection with such action, suit or proceeding, provided
that the Company shall not indemnify any person from or on account of such
person’s conduct which was finally adjudged to have been knowingly fraudulent,
deliberately dishonest or willful misconduct.

17

(d) To the extent that a director,
officer or employee of the Company or a person who is or was serving at the
request of the Company as a director or officer of another corporation,
partnership, joint venture, trust or other enterprise, has been successful on
the merits or otherwise in defense of any action, suit, or proceeding referred
to in this Section or in defense of any claim, issue or matter therein, he
shall be indemnified against expenses, including attorneys’ fees, actually and
reasonably incurred by him in connection with the action, suit, or proceeding.

Unless otherwise expressly provided by the Board of
Directors, in no event shall any person who is or was an agent of the Company,
or is or was serving at the request of the Company as an employee or agent of
another corporation, partnership, joint venture, trust or enterprise, be
entitled to any indemnification by the Company in any action, suit or
proceeding, regardless of the fact that such person may have been successful on
the merits or otherwise in defense of any action, suit or proceeding, or in
defense of any claim, issue or matter therein. The preceding sentence is
intended to eliminate any right any such person might otherwise have to be
indemnified by the Company pursuant to Section 351.355.3. of the General and Business Corporation Law of Missouri.

(e) Any indemnification under this Section, unless ordered
by a court, shall be made by the Company only as authorized in the specific
case upon a determination that indemnification of the director, officer or
employee is proper in the circumstances because he has met the applicable
standard of conduct set forth in this Section. The determination shall be made
by the Board of Directors by a majority vote of a quorum consisting of
directors who were not parties to the action, suit, or proceeding, or if such a
quorum is not obtainable, or even if obtainable a quorum of disinterested
directors so directs, by independent legal counsel in a written opinion, or by
the shareholders.

(f) Where full and complete indemnification is prohibited by
law or public policy, any person referred to in subsection (a) above who
would otherwise be entitled to indemnification nevertheless shall be entitled
to partial indemnification to the extent permitted by law and public policy.
Furthermore, where full and complete indemnification is prohibited by law or
public policy, any person referred to in this Section who would otherwise be
entitled to indemnification nevertheless shall have a right of contribution to
the extent permitted by law and public policy in cases where said party is held
jointly or concurrently liable with the Company.

Section 2. The
indemnification provided by Section 1 shall not be deemed exclusive of any
other rights to which those seeking indemnification may be entitled under the
Articles of Incorporation or these By-Laws or any agreement, vote of
shareholders or disinterested directors or otherwise both as to action in his
official capacity and as to action in another capacity while holding such
office, and the Company is hereby specifically authorized to provide such indemnification
by any agreement, vote of shareholders or disinterested directors or otherwise.
The indemnification shall continue as to a person who has ceased to be a
director, officer or employee entitled to indemnification under this Article
and shall inure to the benefit of the heirs, executors and administrators of
such a person.

Section 3. The
Company is authorized to purchase and maintain insurance on behalf of, or
provide another method or methods of assuring payment to, any person who is or
was a director,

18

officer or employee of the Company,
or is or was serving at the request of the Company as a director or officer of
another corporation, partnership, joint venture, trust or other enterprise
against any liability asserted against him and incurred by him in any capacity,
or arising out of his status as such, whether or not the Company would have the
power to indemnify him against such liability under the provisions of this Article.

Section 4. Expenses
incurred by a person who is or was serving as a director or officer of the
Company or a person who is or was serving at the request of the Company as a
director or officer of another corporation, partnership, joint venture, trust or
other enterprise, in defending a civil or criminal action, suit or proceeding
referred to in Section 1 of this Article shall be paid by the Company in
advance of the final disposition of the action, suit, or proceeding as shall be
authorized by the Board of Directors in the specific case upon receipt of an
undertaking by or on behalf of such person to repay such amount unless it shall
ultimately be determined that he is entitled to be indemnified by the Company
as may be authorized in this Article. Expenses incurred by a person who is or
was serving as an employee of the Company in defending a civil or criminal
action, suit or proceeding referred to in Section 1 of this Article may be
paid by the Company in advance of the final disposition of the action, suit, or
proceeding as may be authorized by the Board of Directors in the specific case
upon receipt of an undertaking by or on behalf of such employee to repay such
amount unless it shall ultimately be determined that he is entitled to be
indemnified by the Company as authorized in this Article.

Section 5. If any
provision or portion of this Article shall be held invalid, illegal or
unenforceable for any reason whatsoever, the validity, legality and
enforceability of all other provisions and portions not specifically held to be
invalid, illegal or unenforceable, shall not be affected or impaired thereby
and shall be construed according to the original intent, to the extent not
precluded by applicable law.

Section 6. For
purposes of this Article:

(a) References to “the Company” include all constituent
corporations absorbed in a consolidation or merger as well as the resulting or
surviving corporation so that any person who is or was a director, officer or
employee of such a constituent corporation or is or was serving at the request
of such constituent corporation as a director, officer, employee or agent of
another corporation, partnership, joint venture, trust or other enterprise
shall stand in the same position under the provisions of this Article with
respect to the resulting or surviving corporation as he would if he had served
the resulting or surviving corporation in the same capacity.

(b) The term “other enterprise” shall include employee
benefit plans; the term “fines” shall include any excise taxes assessed on a
person with respect to an employee benefit plan; and the term “serving at the
request of the Company” shall be established as specified below in this
Section 6(b) and shall include any service as a director, officer or
employee of the Company which imposes duties on, or involves services by, such
director, officer or employee with respect to an employee benefit plan, its
participants, or beneficiaries; and the word “include” or “includes” shall be
construed in its expansive sense and not as a limiter; and a person who acted
in good faith and in a manner he reasonably believed to be in the interest of
the participants and beneficiaries of an employee benefit plan shall be deemed
to have acted in a manner “not opposed to the best interests of the Company” as
referred to in this Article. For purposes of this Article, “serving at the
request

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of the Company” shall be established
solely by (1) express approval by the Nominating and Corporate Governance
Committee of such person’s service as a director or officer of another
corporation, partnership, joint venture, trust or other enterprise, (2) the
annual review by the Nominating and Corporate Governance Committee of a list of
non-affiliated corporations, partnerships, joint ventures, trusts or other
enterprises that Company officers are serving as a director or officer of, so
long as the Nominating and Corporate Governance Committee does not notify any
such officer within 30 days after receiving such list that such person is not
serving at the request of the Company or (3) a person serving as a
director or officer of a Company Subsidiary, as hereinafter defined. The term
“Company Subsidiary” shall mean any corporation, partnership, joint venture,
trust or other enterprise, whether domestic or foreign, in which the Company
has or obtains, directly or indirectly, a proprietary interest of more than
fifty percent (50%) by reason of stock ownership or otherwise. Upon
establishing that a person is “serving at the request of the Company” as
described under (1) (2) and (3) above, such person’s service for
purposes of this Article shall begin at the time of his initial service as a
director or officer of such other corporation, partnership, joint venture,
trust or other enterprise. The obligations of the Company under this Article to
provide indemnification or advancement of expenses to a person serving at the request
of the Company as a director or officer of another entity shall only apply to
the extent that such person is not entitled to or does not receive
indemnification or advancement of expenses from such other entity.

(c) Notwithstanding anything to the contrary contained in
these By-Laws or in Section 351.355.3 of the General and Business
Corporation Law of Missouri, the maximum liability of the Company to any person
“serving at the request of the Company,” at any time for all claims for
indemnification and advancement of expenses for such person under these By-Laws
or applicable law for such service shall for all purposes be limited to $25
million, except as otherwise expressly approved by the Board of Directors;
provided, however, that the provisions of this Section 6(c) shall not be
applicable in any respect to a person’s service only as a director or officer
of a Company Subsidiary.

Section 7. This
Article may be hereafter amended or repealed; provided, however, that no
amendment or repeal shall reduce, terminate or otherwise adversely affect the
right of a person who is or was a director, officer or employee to obtain
indemnification or advancement of expenses with respect to an action, suit, or
proceeding that pertains to or arises out of actions or omissions that occur
prior to the effective date of such amendment or repeal.

ARTICLE V

Uncertificated Shares and
Certificates of Stock

Section 1. The
interest of each shareholder of any class of stock of the Company shall not be
evidenced by certificates for shares and all shares of all classes of stock
shall be uncertificated shares; provided, however, that (a) any shares of
stock of the Company represented by a certificate shall continue to be
represented by such certificate until such certificate is surrendered to the
Company and (b) the Company may, at its option but without obligation,
issue certificates for some or all of any shares of some or all of any classes
of stock as determined by the Company from time to time. The shares of stock of
the Company which are to be evidenced by certificates as provided in this
By-Law shall be in such form as the Board of Directors may from time to time

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prescribe and shall be signed by the
Chairman, if any, or the President or a Vice President (including Senior or
Executive Vice Presidents) and by the Secretary or Treasurer or an Assistant
Secretary or an Assistant Treasurer of the Company and sealed with the seal of
the Company and shall be countersigned and registered in such manner if any, as
the Board of Directors may from time to time prescribe. Any or all of the
signatures on the certificate may be facsimile and the
seal may be facsimile, engraved or printed. In case any officer, transfer agent
or registrar who has signed or whose facsimile signature has been placed upon a
certificate shall have ceased to be such officer, transfer agent or registrar
before such certificate is issued, the certificate may nevertheless be issued
by the Company with the same effect as if the person were an officer, transfer
agent or registrar at the date of issue. Every holder of uncertificated shares
is entitled to receive a statement of holdings as evidence of share ownership.
Upon the request of any holder of uncertificated shares, the Company shall also
furnish such information as is required pursuant to Section 351.180.6. of the General and Business Corporation Law of Missouri.

Section 2. The
shares of stock of the Company shall be transferable only on the books of the
Company by the holders thereof in person or by duly authorized attorney, upon
delivery of an assignment and power of transfer, duly executed, and with such
proof of the authenticity of the signatures as the Company or its agents may
reasonably require, and with respect to any shares represented by a certificate
upon surrender for cancellation of such certificate.

Section 3. No shares
of stock of the Company shall be transferred if represented by a certificate
alleged to have been lost, stolen or destroyed, except upon production of such
evidence of such loss, theft or destruction, and upon the Company being
indemnified to such extent and in such manner as the Board of Directors in its
discretion may require. No certificate for shares of stock of the Company shall
be issued in place of any certificate alleged to have been lost, stolen or
destroyed, except that upon the request of the shareholder the Company may, at
its option but without obligation, issue a replacement certificate upon
production of such evidence of such loss, theft or destruction, and upon the
Company being indemnified to such extent and in such manner as the Board of
Directors in its discretion may require.

Section 4. All
determinations by the Company from time to time as to whether the Company shall
at its option issue a certificate for any shares of any class of stock as
provided in this By-Law shall be made by such officers of the Company as may be
designated by the Board of Directors from time to time, and such determinations
as to the issuance of certificates may vary as to any shares of any class and
need not be uniform as to all shares or all classes.

ARTICLE VI

Closing of Stock Transfer Books or
Fixing Record Date

The Board of Directors shall have power to close the stock
transfer books of the Company for a period not exceeding seventy days preceding
the date of any meeting of shareholders or the date of payment of any dividend
or the date for the allotment of rights or the date when any change or
conversion or exchange of shares shall go into effect; provided, however, that
in lieu of closing the stock transfer books as aforesaid, the Board of
Directors may fix in advance a date, not exceeding seventy days preceding the
date of any meeting of shareholders, or the date for the payment of any
dividend, or the date for the allotment of rights, or the date when any change
or conversion or

21

exchange of shares shall go into
effect, as a record date for the determination of the shareholders entitled to
notice of, and to vote at, any such meeting, and any adjournment thereof, or
entitled to receive payment of any such dividend, or entitled to any such
allotment of rights, or entitled to exercise the rights in respect of any such
change, conversion or exchange of shares. In such case such shareholders and
only such shareholders as shall be shareholders of record on the date of
closing the stock transfer books or on the record date so fixed shall be
entitled to notice of, and to vote at, such meeting, and any adjournments
thereof, or to receive payment of such dividend, or to receive such allotment
of rights, or to exercise such rights, as the case may be, notwithstanding any
transfer of any shares on the books of the Company after such date of closing
of the transfer books or such record date fixed as aforesaid.

ARTICLE VII

Checks,
Notes, etc.

All checks and drafts on the Company’s bank accounts and all
bills of exchange and promissory notes, and all acceptances, obligations and
other instruments for the payment of money, shall be signed by such officer or
officers or agent or agents as shall be thereunto authorized from time to time
by the Board of Directors. The Board of Directors may authorize any such
officer or agent to sign and, when the Company’s seal is on the instrument, to
attest any of the foregoing instruments by the use of a facsimile signature,
engraved or printed or otherwise affixed thereto. In case any officer or agent
who has signed or whose facsimile signature has been placed upon any such
instrument for the payment of money shall have ceased to be such officer or agent
before such instrument is issued, such instrument may nevertheless be issued by
the Company with the same effect as if such officer or agent had not ceased to
be such officer or agent at the date of its issue.

ARTICLE VIII

Fiscal Year

The fiscal year of the Company shall begin on the first day
of January in each year and shall end on the thirty-first day of December
following until otherwise changed by resolution of the Board, and the Board is
authorized at any time by resolution to adopt and fix a different fiscal year
for the Company.

ARTICLE IX

Corporate Seal

The corporate seal shall have inscribed thereon the name of
the Company and the words “Corporate Seal, Missouri.”

ARTICLE X

Amendments

The By-Laws of the Company may be made, altered, amended, or
repealed by the Board of Directors.

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ARTICLE
XI

Words used herein denoting a specific gender, shall be
construed to include any other gender, as applicable in the context.